There are 31 stadiums that NFL franchises call home. MetLife Stadium is shared by New York’s Jets and Giants, and the two teams opened the stadium together in a pre-season, Monday night game in 2010. But did you know that one NFL team still plays its home games in a stadium that another NFL team once called home? Can you guess which stadium that is?

Three hints below; as always, the honor system will be strictly enforced.

Candlestick Park in San Francisco, California. The San Francisco 49ers spent the first 25 years of their existence playing in Kezar Stadium. When the Oakland Raiders and the American Football League were established, the Raiders actually spent their first season at Kezar Stadium, too. Then in 1961, Oakland spent the season at Candlestick Park, which had long been home to baseball’s San Francisco Giants. In 1962, the Raiders moved to Oakland’s Frank Youell Field for four seasons, before moving to the Oakland-Alameda County Coliseum in 1966. The 49ers left Kezar Stadium after 1970, and become the second professional football team to call “The Stick,” home.